ACPI: sysfs: use sysfs_emit() to instead of scnprintf()

Xu Panda · rafaeljw · commit 82d08d61e3a8 · 2022-11-10T20:24:49.000+01:00
Replace scnprintf() with sysfs_emit() to simplify the code.

Reported-by: Zeal Robot &lt;zealci@zte.com.cn&gt;
Signed-off-by: Xu Panda &lt;xu.panda@zte.com.cn&gt;
Signed-off-by: Yang Yang &lt;yang.yang29@zte.com&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
@@ -198,7 +198,7 @@ static int param_set_trace_method_name(const char *val,
 
 static int param_get_trace_method_name(char *buffer, const struct kernel_param *kp)
 {
-	return scnprintf(buffer, PAGE_SIZE, "%s\n", acpi_gbl_trace_method_name);
+	return sysfs_emit(buffer, "%s\n", acpi_gbl_trace_method_name);
 }
 
 static const struct kernel_param_ops param_ops_trace_method = {

Original file line number	Diff line number	Diff line change
`@@ -198,7 +198,7 @@ static int param_set_trace_method_name(const char *val,`
`198`	`198`
`199`	`199`	`static int param_get_trace_method_name(char buffer, const struct kernel_param kp)`
`200`	`200`	`{`
`201`		`- return scnprintf(buffer, PAGE_SIZE, "%s\n", acpi_gbl_trace_method_name);`
	`201`	`+ return sysfs_emit(buffer, "%s\n", acpi_gbl_trace_method_name);`
`202`	`202`	`}`
`203`	`203`
`204`	`204`	`static const struct kernel_param_ops param_ops_trace_method = {`